czsky/en/star/RR_Tel.md

name	constellation	created_by	created_date	updated_by	updated_date
RR Tel	Tel	editor.cs	2022-01-21 17:00:00	skybber	2022-04-02 10:53:13.639083

Although this star is too faint for a small telescope, it is one of the most interesting novae recorded in our history. Before 1945, its brightness for 13 months fluctuated between 12.5mag and 15mag. But then it burst into flames and held its brightness at magnitude 6.5 for 5 years. Although it later faded to its original brightness, it still retained its original period of brightness changes. It is definitely a binary star, the larger component of which is a red giant changing brightness, while the smaller component is a hot dense star that flared as a nova.